From: CXP Peter (peter@cyscoexpert.com)
Date: Sun Jan 04 2004 - 15:59:13 GMT-3
IP address 172.16.111.1 255.255.248.0 happens to be on the 172.16.104.0/21
subnet and you advertised some addresses from this subnet with "network
172.16.111.0 0.0.0.7 area 11". So it is very normal to see this route being
advertised in OSPF.
_____________________________
Peter
#7247 (R&S, Security, SP)
CyscoExpert Corp.
4433 W. Touhy Ave. Suite 410
Lincolnwood, IL 60712
Phone (847) 674-3392
Toll Free (866) CyscoXP (297-2697)
Fax (847) 674-2625
----- Original Message -----
From: "John Underhill" <stepnwlf@magma.ca>
To: <ccielab@groupstudy.com>
Sent: Sunday, January 04, 2004 12:36 PM
Subject: Router blew a gasket
> I was looking through the routing tables and noticed a route I didn't
> advertise. This is really strange, because it says loop0 is connected on
this
> box in the route table, and is advertising it into OSPF, but the loop0
address
> that is configured is not the same, (not even close), and I never
advertised
> this network in OSPF. Router has been rebooted and erased since the last
> config, but it looks like it's keeping it in memory.. pretty weird..
>
> 172.16.0.0/16 is variably subnetted, 9 subnets, 5 masks
> C 172.16.134.0/24 is directly connected, Serial0.2
> O IA 172.16.44.0/29 [110/65] via 172.16.134.4, 00:03:52, Serial0.2
> O IA 172.16.22.0/27 [110/65] via 172.16.123.2, 00:03:52, Serial0.1
> C 172.16.1.0/24 is directly connected, Serial1
> C 172.16.123.0/24 is directly connected, Serial0.1
> C 172.16.104.0/21 is directly connected, Loopback0 <-- This one --
> R1#
> !
> interface Loopback0
> ip address 172.16.111.1 255.255.248.0
> no ip directed-broadcast
> no ip route-cache
> ip ospf network point-to-point
>
> router ospf 110
> area 111 virtual-link 172.16.134.4
> network 172.16.111.0 0.0.0.7 area 11
> network 172.16.123.0 0.0.0.255 area 0
> network 172.16.134.0 0.0.0.255 area 111
>
> Routing table on another box shows the route..
>
> C 172.16.122.0/27 is directly connected, Loopback0
> C 172.16.22.0/24 is directly connected, Dialer0
> C 172.16.22.1/32 is directly connected, Dialer0
> C 172.16.123.0/24 is directly connected, Serial0.1
> O IA 172.16.104.0/21 [110/65] via 172.16.123.1, 00:01:58, Serial0.1
> R2#
>
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This archive was generated by hypermail 2.1.4 : Mon Feb 02 2004 - 09:07:36 GMT-3